It's the privacy equivalent of "She was dressed skimpy in that part of town"

If people don't have anything to hide ask them how their marriage is and when the last time was they met their mistress, since they drive by there way too often for not having one nearby that location. That line of questioning usually shuts people up, replace response with financials/location/calls/etc when needed. (I know it's a reductio ad absurdum)